Foot & Ankle


Lateral Aspect


  • Accessory Peroneal Muscles

Medial Aspect


  • Flexor Digitorum Accessorius Longus
  • Peroneocalcaneus Internus
  • Accessory Soleus
  • Tibiocalcaneus Internus

Knee


  • Accessory Slips of the Medial and Lateral Gastrocnemius
  • Tensor Fasciae Suralis
  • Accessory Popliteus

Elbow


  • Accessory Brachialis
  • Anconeus Epitrochlearis
  • Accessory Head of the Flexor Pollicis Longus
  • Bifurcated Distal Biceps Brachii

Hand and Wrist


Volar Aspect


  • Accessory Flexor Digitorum Superficialis Indicis
  • Accessory Abductor Digiti Minimi
  • Accessory Flexor Digiti Minimi
  • Variations in Palmaris Longus
  • Flexor Carpi Radialis Brevis Vel Profundus

Dorsal Aspect


  • Extensor Digitorum Brevis Manus
  • Accessory Extensor Carpi Radialis and Variations

Shoulder


  • Additional Heads of Biceps Brachii

References


1. Sookur PA, Naraghi AM, Bleakney RR, Jalan R, Otto Chan O, White LM. Accessory muscles: anatomy, symptoms, and radiologic evaluation. [[http://radiographics.rsna.org/content/28/2/481.full |March 2008 RadioGraphics, 28, 481-499]].